Pollution Source Water Quality Online Monitoring System

The self-developed online monitoring system for water pollution sources has complete independent intellectual property rights and is suitable for emission monitoring and process monitoring in various harsh environments and working conditions, targeting the characteristics of wastewater discharged by industries such as urban sewage treatment, hospitals and industrial enterprises.

Online Monitor for Water Quality's Chemical Oxygen Demand

It utilizes the principle of potassium dichromate high-temperature digestion and spectrophotometry. After undergoing pretreatment, the water sample is oxidized by potassium dichromate under high temperature and high pressure conditions. The Chemical Oxygen Demand (COD) content is then quickly determined using a spectrophotometer. The principle of the instrument complies with standards such as the "Water quality - Determination of the chemical oxygen demand - Dichromate method" (HJ 828-2017) and the "Water quality－Determination of the chemical oxygen demand－Fast digestion-Spectrophotometric method" (HJ/T 399-2007). This instrument meets the requirements of the "Technical specifications and test procedures for water quality on-line automatic monitoring equipment of chemical oxygen demand (CODCr)" (HJ 377-2019).

Ammonia Nitrogen Water Quality Online Monitor

The C310 Ammonia Nitrogen Water Quality Online Monitor, independently developed by BESCIENT TECHNOLOGIES, conforms to the "Technical specifications and test procedures for water quality on-line automatic monitoring equipment of ammonia" (HJ 101-2019) set by the Ministry of Ecology and Environment of the People's Republic of China. It has also obtained the China Environmental Protection Product Certification Certificate issued by the China Association of Environmental Protection Industry (Beijing) Certification Center.

Total Phosphorus Water Quality Online Monitor

The C310 Total Phosphorus Water Quality Online Monitor, independently developed by BESCIENT TECHNOLOGIES, is a product that measures the total phosphorus content in water based on the colorimetric method. The method involves the digestion of the sample with potassium persulfate (or nitric acid-perchloric acid), which converts all phosphorus into orthophosphate. In an acidic medium, orthophosphate reacts with ammonium molybdate in the presence of antimony salt to form phosphomolybdic acid. This is immediately reduced by ascorbic acid to produce a blue complex. The absorbance of this complex is directly proportional to the concentration of total phosphorus.

Total Nitrogen Water Quality Online Monitor

Method Principle: It involves the conversion of nitrogen-containing compounds in the sample into nitrate by an alkaline potassium persulfate solution at 120-124℃. The absorbances at wavelengths of 220nm and 275nm, denoted as A220 and A275 respectively, are measured using ultraviolet spectrophotometry. The total nitrogen content (expressed as N) is proportional to the corrected absorbance A, which is calculated using a specific formula.

Total Lead Water Quality Online Monitor

The specific chromogenic agent reacts with lead ions under alkaline conditions to form a colored complex with characteristic absorption at a specific wavelength. The concentration of the complex is proportional to the concentration of Pb ions. The complex is then measured by a precision spectrometer to accurately measure the concentration of lead ions in the water.